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    <title>Document</title>
    <script type="text/javascript">
            // 1.将数组map，filter，reduce，every改写成箭头函数形式

        const arr = [1, 2, 3, 4, 5, 6]
         const arr1 = arr.map(
            function (element) {
                    return element + 1
                }
         )
            console.log(arr1);

            const new_arr = arr.filter(
                function(e){
                    return e%2==0  //true：返回 false：不符合条件=>过滤
                }
            )

            var sum = arr.reduceRight(
                function (v1,v2){
                    return v1*v2
                }
            )

            var isMatch = arr.every(
                function (e){
                    return e>1
                }
            )
    </script>
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